The Sys Admin’s Daily Grind

First the fun, then the pleasure: This month, we look at a TCP that administrators have to take seriously, followed by some URL fun.

If you need to smooth the kinks out of your network services, very likely you will take Tcpdump and Wireshark out of your toolbox. But honestly, both are slightly less than intuitive, and you need to be a genuine expert to interpret the results. Tcpflow, on the other hand, is infinitely more intelligible.

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In the 25 years of Linux kernel history, a huge amount of code and many comments have accumulated. They can be explanatory, enlightening, funny, or even profane. Charly prefers to do things differently, so he types fuck in the shell.

If you do not receive a response to a ping, or if the response is seriously delayed, you might like to take this as a warning. But who wants to ping all day? You need a ping-based monitoring utility like Smokeping.